Kerimov, G. A.2024-06-122024-06-1220060375-9601https://doi.org/10.1016/j.physleta.2006.05.012https://hdl.handle.net/20.500.14551/25358The algebraic method is used to investigate non-central Hamiltonians belonging to a class of potentials that exhibit an 'accidental' degeneracy in the energy spectrum. We explain the accidental degeneracy of the energy levels by the u(4) potential algebra. (c) 2006 Published by Elsevier B.V.en10.1016/j.physleta.2006.05.012info:eu-repo/semantics/closedAccessRing-Shaped OscillatorSymmetriesSystemsArticle3583176180Q2WOS:0002408744000022-s2.0-33747196345Q2